Paper 2 · Waves and Interference
What is meant by the diffraction of waves?
AThe change in direction of a wave as it passes from one medium into another of different density.
BThe superposition of two waves travelling in opposite directions to form a standing wave pattern.
CThe spreading (bending) of waves as they pass through a gap or around the edge of an obstacle.
DThe gradual decrease in a wave's amplitude as it travels further from its source.
Explanation: Diffraction is the spreading (bending) of waves as they pass through a gap or around the edge of an obstacle.
Derived from ZIMSEC Physics Paper 2, November 2002, Q4